Panel repair and rework technique patents: mapping laser repair, short-circuit cutting and bridge deposition claims
Concentrated ownership. the top 5 assignees hold 61.1% of all 18 records in scope, and the top 10 hold 94.4% — this is a field with almost no long tail left to claim around. Filings peaked in 2019 at 4 records and have not returned to that level since; 2026 is a partial year and should not be read as a drop-off.
- 1TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD16.7%
- 2ACUID11.1%
- 3KURSOV DMITRY VLADIMIROVICH11.1%
- 4EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD11.1%
- 5SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD11.1%
See the full panel repair and rework techniques analysis in Eureka
- The complete ranking, not just the top five
- Every IPC branch with its share of the corpus
- The most-cited records, and where claim space is still thin
Common questions on panel repair and rework patents
Who are the leading patent holders in panel repair and rework techniques?
The ranked field covers 11 companies, with the leading assignee holding 3 of the 18 records in scope in this dataset. The top 5 assignees together account for 61.1% of all records, and the top 10 account for 94.4%, so ownership is concentrated among a small group of display manufacturers rather than spread widely. Beyond the top 10, filing activity drops to isolated single-record entrants, including cross-industry filers outside core display manufacturing.
What repair techniques do these patents actually cover?
The scope centres on laser-based line defect repair, short-circuit cutting, and bridge deposition methods used to reconnect or isolate faulty wiring on a display array after detection. It also includes detection-before-repair workflows and substrate designs, such as auxiliary redundancy lines, that make a panel repairable by design rather than only after the fact. IPC data shows G02F (optical control and modulation) is the dominant class, present in 55.6% of the 18 records.
Is the panel repair patent field still active, or has filing slowed down?
Filing peaked at 4 records in 2019 and has not returned to that level in the years since, based on the trend data available. However, publication lags filing by roughly 18 months, so the most recent one to two years in any patent trend will always look thinner than the true filing rate. A reliable growth rate cannot be computed from the years currently available in this dataset.
Disclaimer. This analysis is based on Patsnap Eureka data drawn from a limited snapshot of global patent records and is provided for general information and reference only. Patent data carries inherent limitations — recent filings are under-counted because of publication lag, counts may be on a record or family basis, classification and applicant-name data may contain errors or duplicates, and the underlying search query defines the scope shown — so the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing here is an exhaustive prior-art, novelty, freedom-to-operate or validity search, nor does it constitute legal, financial or professional advice, and it should not be relied upon as such. Verify independently and review with qualified patent and legal professionals before acting on it.
Method: Filing trend and technology composition. Derived from a Patsnap search on Panel Repair and Rework Techniques covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish. Every share divides by all records in scope. Data: Patsnap Eureka. See the full landscape report.